baber/WOPTO huggingface dataset:
Patent GB-296500-A (GB)
Title: Improvements in and relating to moulds for casting concrete pipes
IPC: B28B21/76
Filed: 1927-06-17
Abstract: 296,500. Brader, G. B. June, 17, 1927. Moulding concrete pipes.- Moulds comprising an annular space between inner and outer shells are formed by removable end pieces or formers adapted to receive an expansible sheetmetal core and to support an outer sheet-metal casing adapted to form a spigot and socket, both mould and core being divided longitudinally at one end only. As shown, formers 6, 7 receive a sbeet-metal core 2 which is expanded by a T-wedge 3. Shoulders 6<a>, 7<a> receive an outer sheet-metal casing 4 which is secured by bolts 4<h> passing through flanges 4<a> 4b spaced by tubes 4k. The end portion 4<c>, 4<d> of the casing is adapted to form a socket and co-operates with the former 6 being secured thereto by a bolt passing through flanges 4<x>. Longitudinal bolts 4<m> pass through lugs in the formers to secure the mould. The casing is strengthened by rings 4P through which the bolts may pass. Material is introduced through the slot between the flanges 4a, 4b and 4<x>. A member 5 closes the socket end of the mould.
Patent GB-659365-A (GB)
Title: Warning device for cooling-water system for transformers
IPC: H02H5/08
Filed: 1949-06-17
Abstract: 659,365. SPIGERVERK, C. June 17, 1949, No. 16198. Convention date, June 17, 1948. [Class 38 (v) ] [Also in Groups XX and XXI] A warning device for a cooling-water system for transformers is characterized by an electric circuit in which the current has to flow through a compartment 2 in which the water-level depends upon the satisfactory operation of the cooling - water system, and having an electrode 7 one end of which is located in the compartment 2 and which is so arranged that it will be in contact with the water or not depending upon the waterlevel. The container 2 receives water from the cooling-system through pipe 1 and has a partition 4 provided with an opening 5 small enough to permit a build-up of water behind the partition during satisfactory operation of the system and with an overflow 6 for surplus water. A further partition 8 may be provided to reduce turbulence around the electrode 7. The electrode 7 is fed with alternating current from the secondary 10 of a transformer 9 and a relay 14 is associated with the secondary 10 so that it is operated when current flows in the electrode circuit. If no such current flows due to failure of the cooling water, or of the primary current supply, the armature 15 of the relay 14 drops and closes an alarm circuit 16.
Patent GB-111152-A (GB)
Title: Improvement in Graphite Crucibles.
Inventor: JAMES REGINALD WILLIAM
IPC: C04B35/52
Filed: 1916-11-14
Abstract: 111,152. James, R. W., (Rietz, E.). Nov. 14, 1916. Refractory substances containing graphite and rare earth compounds.-A graphite crucible contains 5 to 40 per cent. of rare earth compounds, i.e. compounds of the gadolinite and thorium groups. Zirconium compounds such as the natural or artificial oxide or silicate or other salt may be used, suitable mixtures being 35 parts of zircon earth, 40 parts of graphite and 25 parts of clay, or 10 parts of zircon earth, 70 parts of graphite and 20 parts of clay. Brick, sand, crucible fragments and a flux may also be added.
Patent GB-554796-A (GB)
Title: Improvements in motor fuels
IPC: C10L1/20
Filed: 1941-12-18
Abstract: 554,796. Liquid fuels. STANDARD OIL DEVELOPMENT CO. Dec. 18, 1941, No. 16330. Convention date, Dec. 31, 1940. [Class 91] The inflammability and explosibility of hydrocarbon fuels is controlled by raising the flash point from the usual safety value of 105‹F. to or above 124‹F. by blending therewith from 0:5-5.0 per cent., preferably 1.0-2.0 per cent., by volume of a non-inflammable aliphatic organic halide boiling below 142‹F. The addition agent used for any particular gasoline should be such that its boiling point is less than 30‹F. above the closed-cup flash point of the hydrocarbon fuel. The addition agents comprise a polyhalide or a monohalide other than chlorine; compounds specified comprise methyl iodide or bromide, trichloromonofluormethane, trichlorotrifluoroethane and trichloromethane (chloroform). The inventian is illustrated using various fuels; in particular, hydrogenated tri-isobutylene fuel of flash point 104‹F. with methyl iodide, B.P. 108.5‹F. and a hydrocarbon base stock of flash point about 20‹F. with methyl bromide. B.P. 40‹F.
Patent GB-578250-A (GB)
Title: Improvements in or relating to magnetic dust cores
IPC: H01F1/26
Filed: 1944-08-29
Abstract: 578,250. Magnetic dust cores. STANDARD TELEPHONES & CABLES, Ltd., and BUCKLEY, S. E. Aug. 29, 1944, No. 16407. [Class 38 (ii)] [Also in Group II] In a magnetic dust core the insulating and binding material consists of a non-reactive mixture of inorganic material with between 1 per cent. and 10 per cent. by weight of a high molecular weight organic material. Inorganic materials named are colloidal clay, magnesium hydroxide, sodium silicate, chromic acid, talc, and kaolin, while suitable organic materials are phenol formaldehyde resin, urea formaldehyde resin, polystyrene, shellac, starch, casein, gelatine, dextrin and glue. In manufacturing the core, talc may be mixed with magnetic powder prepared as described in Specification 564,651, which is then annealed, ground to a powder and mixed with the kaolin and such organic materials as are a powder. Sodium silicate and magnesium hydroxide may be added dissolved and suspended respectively in water, and gelatine may also be added in solution. After the cores have been compressed into shape, they may be heat treated to produce a desired permeability or just baked to dry and given a surface coating. The magnetic dust may be formed from an alloy containing 78 per cent. to 82 per cent. nickel, 16 per cent. to 19 per cent. iron and up to 4 per cent. molybdenum. Specifications 269,510, [Class 37], 269,511, [Class 38 (ii)], 357,537 and 438,803, [Group XXXVI], also are referred to.
Patent GB-700899-A (GB)
Title: Improvements in or relating to devices for driving the spool-carrying drums of electroacoustic recording and reproducing machines
IPC: G11B15/22
Filed: 1952-06-30
Abstract: 700,899. Magnetic recording and reproducing apparatus. FABRE DE MAZON, R. M. A. A. DE. June 30, 1952 [Aug. 6, 1951], No. 16427/52. Class 40 (2). A driving device for a magnetic tape recording and reproducing apparatus comprises a pair of planet pinions 3, 4 constantly in engagement with a reversible driving pinion 2 and carried by a movable support 7 whereby one of the planet pinions is brought into engagement with the appropriate spool-carrying drum 8 or 10 according to the direction of rotation of the driving pinion 2. At the same time braking of the spool 9 or 11 being unwound is effected by means of the jamming effect of one of the eccentric sleeves 16 which serves to stop the rotation of the appropriate one of sleeves 14 frictionally mounted on shafts 15 and supporting the spools.
Patent GB-830328-A (GB)
Title: Improvements in article and method of joining vitreous material
IPC: H05K1/03
Filed: 1958-05-22
Abstract: 830,328. Coating by vapour deposition; copper alloys. GENERAL ELECTRIC CO. May 22, 1958 [June 5, 1957], No. 16430/58. Classes 82(1) and 82(2) [Also in Groups XXII and XXXVI] Fig. 4 shows a device for coating a glass &c. surface 20 with an alloy of aluminium, iron, and copper which is in the form of a small metal turning placed on a vaporizing coil 19 connected to leads 26, 27. A quartz heater 23 connected to leads 24, 25 maintains the surface 20 at a temperature of 280C-300C. The air in the enclosure 21 is removed through a tube 22, and a current passed through the coil 19 to vaporize the alloy. The deposit on the surface 20 is cooled before being exposed to the air, as by passing nitrogen or other inert gas over the coated surface. Alloys. A vitreous body is coated with an alloy consisting of 6% to 11.2% of aluminum, 1.5% to 4.5% of iron, the balance being copper.
Patent GB-476648-A (GB)
Title: An improved apparatus for winding wire and other long flexible articles on a support
IPC: B21C47/14
Filed: 1936-06-12
Abstract: 476,648. Drawing wire. BRITISH INSULATED CABLES, Ltd., BOLTON, C. R., LAWRENSON, A., HARGREAVES, E. S., CLEMENTS, W. J., and BROWN, W. A. June 12, 1936, No. 16452. [Class 83 (iv)] [Also in Group IX] A machine for winding wire and other long flexible articles on to a stationary block comprises a member which carries the wire &c., in a circular path round the block and winds it thereon, the wire passing from a point in line with the axis of the block outwards to the winding member and being drawn through a die which is rotated with the winding member on the said axis. As shown the die 13 is fixed in a holder 39 on a plate 37 at the end of a bracket 36 bolted to a pulley 5 driving a hollow shaft 4 on which a casing 3, carrying the winding member 16 is fixed. The wire passes from a guide 12, through the die 13 and shaft 4, to a guide pulley 14 mounted in bearings in an extension 32 of the shaft 4, and out through an aperture in the casing 3 to the winding member or guide pulley 16 and to the block 2 which is mounted on a shaft 29 geared by sun and planet gearing 7, 9, 8 to a sum-wheel 6 fixed to a stationary ring 10 on the fixed housing 17 so'that the block does not rotate. The die is mounted in a stationary casing or enclosure 41 and is lubricated from a pipe 42, the lubricating liquid passing through an outlet pipe 43 at the bottom of the casing ; the projecting bracket 36 permits the fixed casing 41 to be placed well clear of the machine. In a modification the winding member is carried by a support for the planet part of the sun and planet gearing, the support being mounted in bearings in a stationary casing having also bearings for the stationary shaft of the block which projects at one end of the casing while the bracket carrying the die projects from the other end of the casing ; the fixed sun-wheel of the sun and planet gearing is formed by an internal ring of teeth on the stationary casing and the gearing is located in the casing. In a further form the fixed sun-wheel is formed by an externally toothed ring mounted on an eatension bracket at one end of the stationary casing and the gearing is arranged between this extension bracket and the casing. According to the Provisional Specification, chain gearing may be arranged between the stationary block and a chain wheel fixed to a bracket within which a short hollow shaft on the casing carrying the winding member is journalled.
Patent GB-362408-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J21/02
Filed: 1930-05-28
Abstract: 362,408. Thermionic valves. STANDARD TELEPHONES & CABLES, Ltd., Columbia House, Aldwych, London.-(Assignees of Pidgeon, H. A. ; 26, Berkeley Road, and McNally, J. O.; 48, Mountain Avenue, both in Maplewood, New Jersey, U.S.A.) May 28, 1930, No. 16456. Convention date, June 5, 1929. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] Grid electrodes are interlaced so that, at each side of the cathode, the wires of one grid intermesh with those of the other on the same surface. Two flattened helical grids 23, 24, Fig. 1, have the straight part of their turns at each side alternating in the same plane and are supported by wires 25 .. 28 alternately positioned by leads in the pinch 12 and by loops 30. The flat cylindrical anode 17 is in halves secured by grooved T-shaped supports 16 and carries a glass part 19 supporting the loops 30 and filament hooks 22. The grids 23, 24 are operated with positive and negative bias, the negative grid or both serving for control purposes and the positive grid as a space-charge grid. The grids may be made by winding wire 23, Fig. 4, helically about a mandrel 35, placing enlargements 36, 37 over the ends and winding helically again as at 24, the mandrel 35 being removed by collapsing it after removing the wedge 38. Alternatively, a thin grid may be positioned in a separately formed larger grid which is then compressed until its turns lie between those of the thin grid.
Patent GB-760847-A (GB)
Title: Improvements in or relating to once-through vapour generating and superheating units
Inventor: STANGE ERICH
IPC: F22G3/00
Filed: 1954-06-03
Abstract: 760,847. Forced-flow steam boilers. DURRWERKE AKT.-GES. June 3, 1955 [June 3, 1954], No. 16482/54. Class 123(2) A forced-flow; once-through steam boiler has a preheater 5, a vaporizer 6, and primary and secondary superheaters 7, 8 serially connected between an inlet header 4 supplied with water from a pump 1 and an outlet header 9 from which a line 10 having a stop valve 11 conveys superheated steam to a main 12. A starting pipe 13 branches from pipe 10 between header 9 and valve 11, the pipe having a valve 14 which is opened when starting up, valve 11 being closed, so that the steam generated escapes through pipe 13 until the required degree of superheat is reached, when valve 14 is closed and valve 11 opened. Pipe 13 is of large diameter to prevent pressure build-up during the starting period. A blowing-off pipe 15, of smaller diameter than pipe 13 and provided with a valve 16, is connected to header 9, alternatively, to a header 17 disposed between superheaters 7 and 8. During shutting-down, the boiler heating surfaces, which might otherwise become overheated due to radiation from the hot brickwork, are cooled by feeding water slowly into the unit until eventually it flows from pipe 15, the flow rate being determined by the setting of valve 16 which, being of small diameter, gives a sensitive control so that pressure build-up due to steam generation can be relieved whilst preventing contact between highly heated tubes and the water.
Patent GB-402833-A (GB)
Title: Improvements in or relating to braking systems for aircraft
IPC: B64C25/48
Filed: 1933-06-11
Abstract: 402,833. Aeroplane wheel brakes. VICKERS (AVIATION), Ltd., and DUNCAN, T. S., Byfleet Road, Weybridge, Surrey. June 11, 1932, No. 16543. [Class 4.] A fluid - pressure braking system of the type in which pivotal movement of the rudder bar after the brakes have been applied augments the pressure on the braking cylinders on one side of the craft whilst reducing it on the other, comprises a reservoir 3, Fig. 1, a hand pump 4, a supply pipe 5 branched at 6, 7 to either side of the craft, augmenter cylinders 8 disposed in each of the latter, and a piston 11, Fig. 2, disposed in each cylinder and actuated by means of a cam 26 carried by the rudder bar 31. Working chamber 12 of cylinder 11 communicates with the brakes by an outlet 13 and also with a chamber 14 communicating with pump 4 by inlet 15. A spring loaded valve 16 is disposed between chambers 12, 14 and is maintained co-axially with piston 11 by a spigot 22. Cam 26 is arranged to hold the plungers 11 in a position in which they hold both valves 16 off their seatings against the action of springs 18, but is so shaped that pivotal movement of the rudder bar forces one plunger 11 inwards and permits the other to move outwards under the influence of the fluid pressure. One valve is thus further opened and the other allowed to seat whereby the pressure in its associated brake cylinders is reduced to zero by outward movement of the plunger whilst the pressure in the others is positively increased. The pump may be of the type described in Specification 313,216, [Class 102 (i), Pumps &c.].
Patent GB-199249-A (GB)
Title: Improvements in or relating to tobacco pipes
IPC: A24F5/06
Filed: 1922-06-15
Abstract: 199,249. Applegate, P. S. June 15, 1922. Tobacco pipes. - An inner clay bowl f seated in the outer bowl e is formed at one side with a tuba l opening at its upper end into the space between the bowls f, e, which forms a cooling chamber, and connected at its lower end with.a tube n engaging the stem or the mouthpiece. The clay bowl f is perforated at the bottom with holes p, and rests in a recess o in the outer bowl, air-tightness being ensured by a cork ring &c.
Patent GB-844110-A (GB)
Title: An improved process and apparatus for the manufacture of urea
IPC: C07C273/04
Filed: 1958-05-23
Abstract: A process for the continuous manufacture of urea from carbon dioxide and ammonia at elevated temperatures and pressures in a tubular reaction vessel comprises passing one reaction component through a tube and introducing the other reaction component in portions to the first component at a plurality of successive points along the length of the tube.  The apparatus used may be such that the final portion of the reaction tube is without inlets or is replaced by a converter, in each case heat being applied to assist the endothermic conversion of intermediate ammonium carbamate to urea.  That portion of the reaction tube which is equipped with inlets may be cooled to assist the exothermic formation of ammonium carbamate as an intermediate stage in the formation of the urea.  The apparatus is preferably constructed of stainless steel and oxygen may be added to the reactant gases to reduce corrosion.
Patent GB-512706-A (GB)
Title: Rotary gas engine
IPC: F01C1/44
Filed: 1938-03-18
Abstract: 512,706. Rotary, engines. McCARTY, M. J. March 18, 1938, No. 16678/37. [Class 110 (ii)] A rotary internal-combustion engine comprises a rotor B on a shaft A, having axial rings B<1>, B<2>, and a stator C, with fixed rings C<1>, C<2>. Fuel enters a port E into a chamber F, compressed against a hinged abutment D, and forced by a head P through a transfer port G into a firing chamber H. The gas is exploded by any means, and expands in a chamber K between an abutment J and the head M. Exhaust gases pass out through a port L.
Patent GB-957213-A (GB)
Title: Improvements in flue liners
IPC: F23J13/02
Filed: 1961-05-09
Abstract: 957,213. Chimney linings. R. K. MATTHEWS. May 3, 1962 [May 9, 1961], No. 16752/61. Heading F4J. A flue liner comprises a flexible tube of fireproof such as pressed, woven felted or plaited asbestos or slag wool and which may be impregnated with a suitable composition which will set by the application of heat or a curing agent. The liner may take the form of a simple tube with or without reinforcement such as wire rings or a wire spiral. The liner may be held temporarily within the flue by an inflatable tube pressing it against the flue whilst setting occurs. The liner may also be fixed in the chimney by injecting a fireproof cement grout between the inflatable tube and the liner. An embodiment, Fig. 8, has a metal bellows type lower section 23 fixed at the fireplace throat 32 by filling the endless tube 35 with a fireproof cement grout and a flexible upper section 24. This section may be fixed by turning the end over the chimney top to form a cuff and applying a clip, Fig. 2 (not shown).
Patent GB-778012-A (GB)
Title: Improvements in transistor pulse amplifier circuits
IPC: H03K3/30
Filed: 1955-06-10
Abstract: 778,012. Transistor pulse circuits. WESTERN ELECTRIC CO., Inc. June 10, 1955 [June 17, 1954], No. 16769/55. Class 40(6) In a circuit for regenerating pulses having a feed-back from the collector 12 to the emitter 11 over a secondary 40 on transformer 41, an input pulse 55 is applied to the emitter, and a clock wave 56 determines the commencement of conduction in the transistor. The output pulse is derived from a tertiary winding 48. Before the receipt of a pulse 55 diodes 22, 32 and 37 are in a conducting state. An input pulse cuts off diode 22 and thus diode 32 so that capacitor 31 commences to charge from battery 28 over resistor 27, current being maintained through diode 37 due to battery 36, resistor 35 and battery 46. At some time before the expiration of period 60 the transistor commences to conduct, the emitter taking current from capacitor 31 so that its potential falls and diode 32 conducts again. The collector rises in potential causing a corresponding rise in the secondary 40 of the transformer to bias off the diode 38 so that current through resistor 35 passes through diode 32 to the emitter circuit. The output pulse is terminated by the clock wave carrying the base positive to cut off the transistor. A diode 61 prevents a false triggering which may occur early in the period 60 with the result that the transistor does not stay in its high conductivity state. The network 52, 53 dissipates the energy stored in the inductors between pulses. In a modification Fig. 3 (not shown) capacitors 31 and 37 are returned to the secondary of transformer 41 so that their potentials are restored more rapidly. An inductor replaces the base resistor 17. Specification 717,106 is referred to.
Patent GB-1004336-A (GB)
Title: Print hammer array for a selective printing machine
IPC: B41J9/10
Filed: 1962-05-02
Abstract: 1,004,336. Typewriters &c. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 2, 1962 [May 3, 1961], No. 16782/62. Heading B6F. Hammer impression arrangements.-In a selective printing device of the type described in (Specification 1,002,052) the print hammers 10 are arranged in ten groups of fifteen, the hammers in each group having the same inertia but having a higher inertia than the hammers in the succeeding group. The variation in the inertia of the hammers is effected by the addition of a tab 16 to each hammer, the size of the tab governing the inertia of the hammer. As shown in Fig. 4 the hammers in print positions 1-15 have the greatest inertia and the longest flight time and those in print positions 135-150 have the smallest inertia and the shortest flight time. The effect of the decreasing flight time from print positions 1 to 150 is to compensate for the increasing proportion of hammer operating time consumed in the scanning of a memory device and to keep the dwell period of the type-carrying bar as short as possible, in this case three milliseconds. The groups of hammers may be smaller or larger than fifteen and all the hammers may have different inertias.
Patent GB-844111-A (GB)
Title: Improvements in drill bits
IPC: E21B10/18
Filed: 1958-05-27
Abstract: 844,111. Boring earth and rock. HUGHES TOOL CO. May 27, 1958 [Dec. 11, 1957], No. 16865/58. Class 85. A rotary drill bit 5 is provided with a replaceable nozzle 6 which is positioned by a snap ring 7 disposed in co-operating grooves 13, 14 arranged in the members 5, 6 respectively. The nozzle 6 is provided with an access pocket 17 for the snap ring and is surrounded by a sealing ring 12. The snap ring may be arranged to snap into the groove in the nozzle as shown or snap into the groove in the bit 5, see Figs. 4 and 5 (not shown). Again, the sealing ring may be disposed in the nozzle, see Fig. 6 (not shown).
Patent GB-1219661-A (GB)
Title: Method and apparatus for jointing leather-like material
Inventor: BECK EDWIN H
IPC: C14B1/00
Filed: 1968-04-08
Abstract: 1,219,661. Boots &c. MFRS. SUPPLIES CO. 8 April, 1968, No. 16883/68 Heading A3B. [Also in Divisions B4 and B5] An apparatus for skiving the edges of pieces of sheet material, such as leather used in making shoes, comprises a circular bladed knife 60, a feed roll 62 and a presser foot 64 for urging the material into contact with the feed roll, the foot having a toe end 68 and a member 71 formed with a portion 72 projecting below the materialcontacting surface 69 of the foot. The portion 72 of the member 71 is arranged to deflect one edge of the material being cut donwardly as at (8, Fig. 11) and a spring finger 73 adjustably mounted on a table 65 is provided with an end 80 arranged to deflect the material upwardly as at (7, Fig. 11). Due to this deflection of the material during cutting, when the latter again resumes its flat state after cutting, the skarf produced is of the shape shown in Fig. 5. In the manufacture of shoe uppers from off-cuts of leather, the pieces to be joined are each fed through the apparatus so that the edges are provided with oppositely-facing skarves (25, 34, Fig. 3). The separate pieces are then joined together by an adhesive.